Covid-19 fourth wave scare: Tamil Nadu reports 12 cases of BA.4, BA.5 Omicron subvariants Tamil Nadu Health minister Ma Subramanian said out of the 150 samples collected from the state, 12 have tested positive for the Omicron subvariants– BA.4 and BA.5– of the coronavirus.
Covid-19 fourth wave scare: Tamil Nadu reports 12 cases of BA.4, BA.5 Omicron subvariants
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